static fromConnectionString()

in src/client.ts [424:446]
14 lines of code
3 McCabe index (conditional complexity)

  static fromConnectionString(connStr: string, transportCtor?: Client.TransportCtor): Client {
    /*Codes_SRS_NODE_IOTHUB_CLIENT_05_002: [The fromConnectionString method shall throw ReferenceError if the connStr argument is falsy.]*/
    if (!connStr) throw new ReferenceError('connStr is \'' + connStr + '\'');

    /*Codes_SRS_NODE_IOTHUB_CLIENT_16_016: [The `fromConnectionString` method shall use the `Transport` constructor passed as argument to instantiate a transport object if it's not falsy.]*/
    /*Codes_SRS_NODE_IOTHUB_CLIENT_16_017: [The `fromConnectionString` method shall use the default Transport (Amqp) if the `Transport` optional argument is falsy.]*/
    if (!transportCtor) {
      transportCtor = Amqp;
    }

    /*Codes_SRS_NODE_IOTHUB_CLIENT_16_015: [The `fromConnectionString` method shall create a new transport instance and pass it a config object formed from the connection string given as argument.]*/
    const cn = ConnectionString.parse(connStr);

    const config: Client.TransportConfigOptions = {
      host: cn.HostName,
      keyName: cn.SharedAccessKeyName,
      sharedAccessSignature: SharedAccessSignature.create(cn.HostName, cn.SharedAccessKeyName, cn.SharedAccessKey, anHourFromNow()),
      tokenCredential: undefined
    };

    /*Codes_SRS_NODE_IOTHUB_CLIENT_05_004: [The fromConnectionString method shall return a new instance of the Client object, as by a call to new Client(transport).]*/
    return new Client(new transportCtor(config), new RestApiClient(config, packageJson.name + '/' + packageJson.version));
  }